1. 3-Key Customized Mechanical Keyboard, Hot-Swappable, Customized, Rgb Lights2. Multi-Layer Superposition, RGB Lights3. Mechanical Shaft Body, Hot-Swappable, Custom Keys4. Realize Complex Actions With One Click And Change Keys At Will.5. Realize 2, 3-Key, 4-Key And Other Combination Shortcut Key Commands With One Click! Example: Key=Alt+Ctrl+Shift+CharacterConnection To Computer: WiredInterface: USBNote:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The UseColour:BlackMaterial:Acrylic+PCBPackage Contents:1 x 3 Key Custom Shortcut Keyboard1 x Connecting Cable1 x Shaft PullerOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.